Whentheacidicstomachcontentsreachtheduodenum,theystimulate themucosalcellsoftheduodenumtosecrete2hormones: 1.Secretin:stimulatesthereleaseofbicarbonatetoneutralizetheacidic chymefromthestomach 2.Cholecystokinin:stimulatesthereleaseofdigestiveenzymesincluding pancreaticalpha-amylasewhichwillhydrolyzethealpha-1,4glycosidic linkagesrandomly,soastoproducesmallersubunitslikemaltose, isomaltose,lactoseandsucrose.